Exam 22: Microbial Symbioses

Several rhizobial species within a cross-inoculation group should be able to grow with particular legume species such as alfalfa.However,the same cross-inoculation group would be unable to associate with another legume species such as peas.

(True/False)

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Question 81

Two organisms that both benefit from each other are in a symbiotic relationship called

(Multiple Choice)

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Question 82

Bacteroids are rarely found within plant cells.

(True/False)

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Question 83

Why was Escherichia coli thought to be a dominant member of the human gut microbial community in the past? What populations ARE important in the human gut and what evidence do we have that the specific bacteria present are important for human health?

(Essay)

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Question 84

Showing 81 - 84 of 84

Several rhizobial species within a cross-inoculation group should be able to grow with particular legume species such as alfalfa.However,the same cross-inoculation group would be unable to associate with another legume species such as peas.

Two organisms that both benefit from each other are in a symbiotic relationship called

Bacteroids are rarely found within plant cells.

Why was Escherichia coli thought to be a dominant member of the human gut microbial community in the past? What populations ARE important in the human gut and what evidence do we have that the specific bacteria present are important for human health?

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